different temperaments 不同性格
calm temperament 冷静的性格
fiery temperament 暴躁的性格
natural temperament 天性
A: Why do you think they react so differently to the same news?
A：你认为为什么他们对同一则消息的反应如此不同？
B: I believe it is because they have very different temperaments.
B：我认为是因为他们的性格非常不同。
1) 性格，气质
2) 心境
3) 天性
1. 性格，气质
noun
1. a person's nature, especially as manifested in their behavior or mood
Synonym: disposition, nature, character